L-Dopa is the active ingredient. About 15% is a large concentration. Ghrp-2 tends to raise cortisol and prolactin slightly. Prolactin is a Dopamine antagonist slowing your libido. So long as you have sufficient B6, your l-dopa aka mucuna purines will turn into dopamine, less prolactin. I use it myself, notice results in bed both sleeping and screwing.
If your sleep is better you GH will be higher.